ltjde



(N Model.)

O. v. LEE.

STEAM -EOWER GOVERNOR.

ATTORNEYS N. Pneus Phmumogmpm. wmingm. nc.

Umano STATES CARL V. LDE, OF BERLIN, ASSIGNOR TO SCHFFER 8U BUDENBERG, OF BUOKAU, GERMANY.

STEAM-POWER GOVERNOR.

4jEECIEEICATION forming part o Letters Patent No. 320,879, dated June 23, 1885.

(No model To all whom, it may concern,.-

Beit known that I, CARL VON LDE, a citizen of Prussia, in Germany, residing at Berlin, Germany, have invented new and useful Improvements in Steam-Power Governors, of which the following is a specification.

This invention has for its object to provide novel means for automatically controlling the throttle-valve of a steam-engine or other motor; and to such end it consists in the combination oi' devices hereinafter described and claimed, reference being made to the drawings illustrating my invention, in whieh- Figure 1 represents a side view of my governor. Fig. 2 isa vertical section in the plane :I: x, Fig. 1, on a larger scale than theprevious figure. Fig. 3 is a horizontal section in the plane y y, Figs. 1 and 5. Fig. 4 is a vertical section in the plane e z, Fig. 2. Fig. 5 is a transverse section in the plane x w', Fig. 3. Fig. 6 is a side view of the main lever detached.

Similar lettersindicate corresponding parts.

In the drawings, the letter A designates a ball-governor, of any suitable construction, which is mounted on a vertical spindle, B, to which a revolving motion is imparted from the steam-engine, the speed of which is to becontrolled by lthe governor.

On the spindle B is mounted a sleeve, C, to which a rising and falling motion is imparted by the governor. From the standard D, which forms the bearing for the spindle B, extends an arm, E, in which is mounted the fulcrum-pin a ofthe lever F. This lever consists of two bars, (see Figs. 3 and 5,) which are situated on opposite sides of the sleeve C, and between these two bars is situated the bell-cranklever G G', which is mounted on a pivot, b, and the horizontal bifurcated arm G of which is provided with pins c, Figs. 3 and 5, which engage with a circular groove, d. in the sleeve C. From the vertical arm G of said bellcrank lever extends a pin, e, through a slot,

f, in one of the bars ofthe lever F, (see Figs.

l, 3, 5, and 6,) and this pin connects by alink, g, with a lever, H, said link being so constructed that it can be lengthened or shortened either by a right and left hand screw or by any other suitable means, so that the pin h, which forms the connection between thelink and the lever H, can be brought exactly in line with the fulcrum-pin a of the lever F. (See Figs. l and 3.) The lever H has its fulcrum on a stud, i, which projects from the standardA pivot, Z, and its arm 7c engages with the steamvalve I. This valve is iitted into the valveehest K, to which steam is admitted through pipe O and channels p p', and which communicates with the cylinder L through ports n n'. In the cylinder L works a piston, M, which connects by rod N and pin o with the lever F. The valve chest K connects by channelsm m with the exhaust-pipe I?. The lever F connects by a rod, Q, with the throttle-valve. I

When the throttle-valve is opened and the steam-engine runs at its normal speed, the several parts occupy the position shown in the drawings-that is to say,'the balls of the governor are half raised, the piston M occupies a central position in the cylinder L, and the steam-valve I closes the exhaust-channels m m and the communications between the valvechest and the steam-channels p p. If the speed of the engine increases, the sleeve C is raised up, and by the action ofthe bell-crank lever G G the link g is drawn in the direction of arrow 2 (marked near it) in Figs. l and 3, and by its action upon the lever H the steamvalve I is depressed, so as to admit steam beneath the piston M, Fig. 2. By the action of the steam the lever F is turned in the direction of arrow l, Fig. 1, and the throttle-valve is closed. If the speed ot the engine is reduced, the steam-valve I is moved so as to admit steam above the piston M. This piston vmoves down, and by the action upon the lever F the throttle-valve is opened. By the action of the steam either below or above the piston M, however, the leverF would be liable to he thrown at once in its highest or in its lowest position, while it is requisite that the movement of said lever shall correspond to the changes in the position of the governor. This effect is attained by the action of the bellerank lever G G', which is actuated by the sleeve C of the governor and connects with the lever H. By placing the pin 71J in line with the fulcrum a of the lever F, the steam-valve I is moved back'to its normal or closing position as soon as the piston M has changed. the position ofthe lever F. Il', for instance, the sleeve C rises five millimeters, the pin h is moved in the direction of arrow 2, as above stated, the steam-valve I is moved down and steam is admitted beneath the piston M, and the lever F swings in the direction of arrow 1. By this movement of the lever F the bell-crank lever G Gis moved bodily upward, while the sleeve C (which at the moment is supposed to remain stationary) formsthe point of resistance, causing the arm G of said bell-crank lever to move the link g in a direction opposite to arrow 2 and throwing the steam-valve back to its closing position.

From the foregoing explanation it will be` seen that the lever F is moved only just as far as the sleeve of the governor7 and that in every case the movement ofthe lever I must follow the movement of the governor. In view of the very large velocity of the steam,both movements can be considered simultaneous. VThe work to be done by the governor is reduced to a minimum. It consists simply in overcoming the friction of the steam-valve I, which is balanced and has to be moved only one-half millimeter. For this reason the speed of an engine can be regulated with very great accuracy by the aid of my governor.

It' desired, my governor can also be used for other motors besides steam-engines, and the regulating-piston M can be actuated by compressed air instead of steam.

Vhat I claim as new, and desire to secure by Letters Patent, is-

1. The combination of a standard, a vertical spindle therein, a vertically-sliding sleeve on the spindle, and governor-balls for actuating the sleeve, With a cylinder arranged on the standard and having a piston, a valve-chest connected with the cylinder, a valve in the chest, and connecting devices between the sleeve, the piston, the valve, and the throttle valve of a steam-engine or other motor, substantially as described.

2. The combination of a standard, a vertical spindle therein, a vertically-sliding sleeve on the spindle, and a ball-governor for actuating the sleeve, with a cylinder supported by the standard and having a piston, a valve-chest connected with the cylinder, and a valve in the chest, and connections between the piston and the throttle-valve of a steam engine or otherrnotor, substantially as described.

3. The combination, with the governor of a steam-engine or other motor and with the throttle-valve, of a cylinder, a valve actuated by the governor and constructed to control the admission of steam or compressed air to the cylinder, a piston fitted into said cylinder, the lever F for connecting the piston to the throttle-Valve, and the bell-crank lever G G, connectedto the levers H and F and to the sleeve of the governor, substantially as shown and described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

CARL V. LUDE.

Vitnesses:

M. W1 Moonn, G. HARRISON SMITH. 

